ludwig



(No Model.)

J. G. LUDWIGn BASIN PLUG.

N0. Z51,786.- Patented Jan. 3,1882.

.WITNESEEEQ INYENTUR,

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5 slots D of that plate.

UNITED STATES PATENT Oral ea...

JOHN G. LUDVVIG, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO CHARLES W. BANKS, OF. SAME PLACE.

BASIN- SPECIFICATION formingpart. of Letters Patent No. 251,786, dated January 3, 1882. Application filed August 29, 1881. (No modeLt To all whom it may concern:

Be it known that I, JOHN G. LUDWIG, a citizen of the United States, and residing at San Francisco, in the county of San Francisco and 5 State of California, have invented a new and useful Basin-Plug, of which the following is a specification.

My invention relates to an improvement in wasteway-plugs of basins, sinks, traps, 850..

the object being to provide a stationary or fixed basin-plug always in position, and to dispense with the ordinary chain-connection.

In the accompanying drawings, forming a part of this specification, Figure l is a central vertical section of my improved basin plug. Fig. 2 is a plan with valve or plate partly turned.

Similar letters of reference are used to design ate like parts throughout the several views. A represents a collar or thimble of the plug, which is constructed with a flaring orbellshaped mouth, B, and is provided with an annular shoulder, 0, upon its outer face. The interior of the thimble or tube is also constructed with an annular ledge or rabbet, to which is connected a stationary plate having slots and arms D D made in it. The center of this plate is provided with a pipe, E, in which pipeis cut a femalescrew to receive the spindle 0 F of the movable plate G. This movable plate Gris provided with radial arms and spacesin the same general manner as that of the stationary plate, and moves on its spindle upon the top of the stationary slotted plate to open or close the A screw-thread is cut upon the end of the spindle F, a space being left between it and the stationary plate toadmit of a sufficient play of thetnovable plate.

In order to withdraw the movable plate from its step or socket,it is lifted up by the thumb- 4.0

piece H until the thread on the spindle bites or engages with the thread of the female screw, and by giving the plate a sufficient number of turns it is easily removed.

Thus it will be seen that an air and water 5 tight wasteway-plug is had of great utility and at a small cost, and 'one that will always be in position in the basin.

I do not broadly claim a valve or movable plate for closing the apertures in the strainer of a sink, nor the combination, with a strainer or perforated stationary plate, of a movable per forated plate pivoted thereto and adapted to be turned to open or close the openings through said plates, such construction being old; but,

Having thus described my invention, what I claitn,and desire to secure by Letters Patent,

, In a wasteway-plug, the combination, with a stationary plate having radial arms and slots and provided with a central interiorly-threaded pipe or tube, of a movable plate having cor- V responding arms and spaces, and provided with a threaded spindle which passes through the stationary plate and its central tube, substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand and seal this 18t day of August, 1881. I

JOHN o. topwte. 1 s.]

Witnesses:

U. W. M. SMITH, OHAs. E. KELLY. 

